Electric bicycle battery testing device

Abstract

The utility model discloses an electric bicycle battery testing device. The electric bicycle battery testing device comprises a charging module, a discharging module, a charging switch module, a discharging switch module, an acquisition module, a control module and an analysis module. The charging module and the discharging module are connected with a to-be-tested battery. The charging switch module is connected between the charging module and the power supply; the discharge switch module is connected between the discharge module and the control module; the control module is connected with the charging switch module, the control module is also connected with the discharging switch module, the acquisition module is arranged in a battery to be tested, and the control module is connected with the acquisition module; the acquisition module is used for acquiring test parameters of a to-be-tested battery; the control module charges or discharges the to-be-tested battery according to the test parameters; and the analysis module is connected with the acquisition module and determines a test result of the to-be-tested battery according to the test parameters. The electric bicycle battery testing device provided by the embodiment of the utility model is beneficial to improving the testing efficiency and accuracy.

Description

Technical Field

[0001] The utility model relates to the technical field of electric bicycles, in particular to a battery testing device for electric bicycles. Background Art

[0002] With the rapid development of the electric bicycle market, electric bicycles are being favored by more and more consumers. However, the battery is one of the key components of an electric bicycle, and its performance directly affects aspects such as the battery life, charging speed, and lifespan of the electric bicycle. In order to ensure that the safety, stability, and performance indicators of the electric bicycle battery meet the requirements, charge and discharge tests need to be carried out during the production process.

[0003] However, in the prior art, the testing of electric bicycle batteries mainly relies on manual testing. Under long-term repetitive work, manual testing is prone to problems such as low testing efficiency and poor testing accuracy. Summary of the Utility Model

[0004] The utility model provides a battery testing device for electric bicycles to improve testing efficiency and accuracy.

[0005] The battery testing device for electric bicycles includes:

[0006] A charging module, a discharging module, a charging switch module, a discharging switch module, a collection module, a control module, and an analysis module;

[0007] The charging module is used to connect to the battery to be tested; the discharging module is used to connect to the battery to be tested;

[0008] The charging switch module is connected between the charging module and the power supply; the discharging switch module is connected between the discharging module and the control module;

[0009] The charging trigger terminal of the control module is connected to the control terminal of the charging switch module, the discharging trigger terminal of the control module is connected to the control terminal of the discharging switch module, the collection module is arranged inside the battery to be tested, and the collection terminal of the control module is connected to the output terminal of the collection module;

[0010] The collection module is used to collect the test parameters of the battery to be tested; the control module is used to control the conduction state of the charging switch module according to the test parameters of the battery to be tested to charge the battery to be tested; or control the conduction state of the discharging switch module according to the test parameters of the battery to be tested to discharge the battery to be tested; the input terminal of the analysis module is connected to the output terminal of the collection module, and the analysis module is used to determine the test result of the battery to be tested according to the test parameters.

[0011] Optionally, the charging module includes: a charger;

[0012] The input end of the charger is connected to the first end of the charging switch module; the second end of the charging switch module is connected to the power supply; the output end of the charger is connected to the battery under test;

[0013] The charger is used to charge the battery under test.

[0014] Optionally, the charging switch module includes: a first relay;

[0015] The first end of the first relay is connected to the charger; the second end of the first relay is connected to the power supply; the control end of the first relay is connected to the control module;

[0016] The first relay is used to control whether the battery under test is charged.

[0017] Optionally, the discharging module includes: a discharger; the discharging port of the discharger is connected to the battery under test; the first trigger end of the discharger is connected to the first end of the discharging switch module; the second trigger end of the discharger is connected to the second end of the discharging switch module;

[0018] The discharger is used to discharge the battery under test when the discharging switch module is turned on.

[0019] Optionally, the discharging switch module includes: a second relay;

[0020] The first end of the second relay is connected to the first trigger end of the discharger; the second end of the second relay is connected to the second trigger end of the discharger; the control end of the second relay is connected to the control module;

[0021] The second relay is used to control whether the battery under test is discharged.

[0022] Optionally, the control module includes: a control unit and a control communication unit;

[0023] The first end of the control communication unit is connected to the output end of the acquisition module; the second end of the control communication unit is connected to the acquisition end of the control unit;

[0024] The control unit is used to control the conduction state of the charging switch module according to the test parameters of the battery under test to charge the battery under test; or control the conduction state of the discharging switch module according to the test parameters of the battery under test to discharge the battery under test; the control communication unit is used for communication between the control unit and the acquisition module.

[0025] Optionally, the control communication unit includes: a CAN communication board;

[0026] The first data terminal and the second data terminal of the CAN communication board are connected to the acquisition module; the signal sending terminal of the CAN communication board is connected to the signal receiving terminal of the control unit; the signal receiving terminal of the CAN communication board is connected to the signal sending terminal of the control unit.

[0027] Optionally, the acquisition module includes at least one of: a current sensor, a voltage sensor, and a temperature sensor.

[0028] Optionally, the analysis module includes: an analysis unit, a storage unit, and an analysis communication unit;

[0029] The analysis communication unit is connected to the acquisition module and the storage unit; the storage unit is further connected to the analysis unit;

[0030] The analysis communication unit is used for communication between the storage unit and the acquisition module; the storage unit is used for storing the test parameters of the battery under test; the analysis unit is used for determining the test result of the battery under test according to the test parameters of the battery under test.

[0031] Optionally, the analysis communication unit includes: a CAN bus analyzer;

[0032] The first end of the CAN bus analyzer is connected to the acquisition module; the second end of the CAN bus analyzer is connected to the storage unit.

[0033] In the embodiment of the present invention, the acquisition module is used to acquire the test parameters of the battery under test, the control module is used to obtain the test parameters acquired by the acquisition module, and control the on-off state of the charging switch module or the discharging switch module according to the test parameters to perform a discharging test or a charging test on the battery under test. During the test, the analysis module is used to obtain the test parameters acquired by the acquisition module, and evaluate the performance of the battery under test according to the test parameters to determine the test result of the battery under test. In the embodiment of the present invention, the control module is used to control the charging switch module or the discharging switch module, and the analysis module is used to evaluate the performance of the battery under test. No manual intervention is required during the test, which is beneficial to improving the test efficiency and accuracy and reducing the test cost.

[0034] It should be understood that the content described in this part is not intended to identify the key or important features of the embodiments of the present invention, nor is it used to limit the scope of the present invention. Other features of the present invention will become easily understood through the following description. Description of the Drawings

[0035] To more clearly illustrate the technical solutions in the embodiments of the present utility model, the following will briefly introduce the accompanying drawings required for the description of the embodiments. Obviously, the accompanying drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other accompanying drawings can also be obtained based on these drawings.

[0036] Figure 1 It is a schematic diagram of an electric bicycle battery testing device provided by an embodiment of the present utility model;

[0037] Figure 2 It is a schematic diagram of another electric bicycle battery testing device provided by an embodiment of the present utility model;

[0038] Figure 3 It is a schematic diagram of yet another electric bicycle battery testing device provided by an embodiment of the present utility model;

[0039] Figure 4 It is a schematic diagram of yet another electric bicycle battery testing device provided by an embodiment of the present utility model. Detailed implementation manners

[0040] In order to enable those skilled in the art to better understand the solutions of the present utility model, the following will clearly and completely describe the technical solutions in the embodiments of the present utility model in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0041] It should be noted that the terms "first", "second", etc. in the description and claims of the present utility model and the above accompanying drawings are used to distinguish similar objects, and do not necessarily need to describe a specific order or sequence. It should be understood that such used data can be interchanged under appropriate circumstances so that the embodiments of the present utility model described here can be implemented in an order other than those illustrated or described here. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device including a series of steps or units does not necessarily have to be limited to those clearly listed steps or units, but may include other steps or units not clearly listed or inherent to these processes, methods, products or devices.

[0042] An embodiment of the present utility model provides an electric bicycle battery testing device. The electric bicycle battery testing device controls a charging switch module or a discharging switch module through a control module to implement charge and discharge testing of the electric bicycle battery. No manual intervention is required during the testing, which is beneficial to improving the testing efficiency and accuracy and reducing the testing cost. Figure 1 is a schematic diagram of an electric bicycle battery testing device provided by an embodiment of the present utility model. Refer to Figure 1 , the electric bicycle battery testing device includes: a charging module 110, a discharging module 120, a charging switch module 130, a discharging switch module 140, a collection module 150, a control module 160, and an analysis module 170.

[0043] The charging module 110 is used to connect to the battery 100 to be tested; the discharging module 120 is used to connect to the battery 100 to be tested; the charging switch module 130 is connected between the charging module 110 and the power supply 200; the discharging switch module 140 is connected between the discharging module 120 and the control module 160; the charging trigger terminal of the control module 160 is connected to the control terminal of the charging switch module 130, the discharging trigger terminal of the control module 160 is connected to the control terminal of the discharging switch module 140, the collection module 150 is disposed in the battery 100 to be tested, and the collection terminal of the control module 160 is connected to the output terminal of the collection module 150; the collection module 150 is used to collect the test parameters of the battery 100 to be tested; the control module 160 is used to control the conduction state of the charging switch module 130 according to the test parameters of the battery 100 to be tested to charge the battery 100 to be tested; or control the conduction state of the discharging switch module 140 according to the test parameters of the battery 100 to be tested to discharge the battery 100 to be tested; the input terminal of the analysis module 170 is connected to the output terminal of the collection module 150, and the analysis module 170 is used to determine the test result of the battery 100 to be tested according to the test parameters.

[0044] Specifically, the control module 160 obtains the test parameters collected by the acquisition module 150. Exemplarily, the test parameters may include SOC (State of Charge), current, voltage, temperature, etc. The control module 160 controls the conduction state of the charging switch module 130 or the discharging switch module 140 according to the test parameters, so as to perform a charging test or a discharging test on the battery under test 100. For example, when the control module 160 performs a charging test or a discharging test on the battery under test 100, it can be judged according to the SOC value of the battery under test 100. When the SOC of the battery under test 100 reaches the charging threshold, the control module 160 controls the discharging switch module 140 to turn off and controls the charging switch module 130 to turn on, so that the battery under test 100 is converted from the discharging state to the charging state, that is, the test on the battery under test 100 is converted from a discharging test to a charging test. When the SOC of the battery under test 100 reaches the discharging threshold, the control module 160 controls the charging switch module 130 to turn off and controls the discharging switch module 140 to turn on, so that the battery under test 100 is converted from the charging state to the discharging state, that is, the test on the battery under test 100 is converted from a charging test to a discharging test. It should be noted that the charging threshold is the maximum SOC value of the battery under test 100 during the charging test, and the discharging threshold is the minimum SOC value of the battery under test 100 during the discharging test. In actual applications, the specific values of the charging threshold and the discharging threshold can be set according to the actual situation, and this embodiment does not limit this.

[0045] When the control module 160 performs a charging test or a discharging test on the battery under test 100, the control module 160 also evaluates the state of the battery under test 100 through the test parameters. When the state of the battery under test 100 is abnormal, the control module 160 controls the charging switch module 130 and the discharging switch module 140 to turn off to stop the test on the battery under test 100. Exemplarily, the abnormal state of the battery under test 100 includes that the charging current of the battery under test 100 is greater than the charging current threshold, the discharging current of the battery under test 100 is greater than the discharging current threshold, and the temperature of the battery under test 100 exceeds the temperature threshold, etc. It should be noted that the charging current threshold, the discharging current threshold, and the temperature threshold are all index values for judging the abnormal state of the battery under test 100. The charging current threshold, the discharging current threshold, and the temperature threshold of different types or models of batteries are different. In actual applications, the charging current threshold, the discharging current threshold, and the temperature threshold can be set according to the actual situation, and this embodiment does not limit this.

[0046] The analysis module 170 obtains the test parameters collected by the acquisition module 150 and stores the obtained test parameters. The analysis module 170 also evaluates the performance of the battery under test 100 according to the test parameters of the battery under test 100 and generates a test result.

[0047] In the embodiment of the present utility model, the acquisition module 150 acquires the test parameters of the battery 100 to be tested. The control module 160 obtains the test parameters acquired by the acquisition module 150, and controls the conduction state of the charging switch module 130 or the discharging switch module 140 according to the test parameters, so as to perform a discharging test or a charging test on the battery 100 to be tested. During the test, the analysis module 170 obtains the test parameters acquired by the acquisition module 150, and evaluates the performance of the battery 100 to be tested according to the test parameters, so as to determine the test result of the battery 100 to be tested. In the embodiment of the present utility model, the control module 160 controls the charging switch module 130 or the discharging switch module 140, and the analysis module 170 evaluates the performance of the battery 100 to be tested. No manual intervention is required during the test, which is beneficial to improving the test efficiency and accuracy and reducing the test cost.

[0048] On the basis of the above embodiments, optionally, the charging module 110 includes: a charger.

[0049] The input end of the charger is connected to the first end of the charging switch module 130; the second end of the charging switch module 130 is connected to the power supply 200; the output end of the charger is connected to the battery 100 to be tested; the charger is used to charge the battery to be tested. Specifically, the charger can be an AC-DC circuit or a DC-DC circuit. The specific type of the charger is related to the type of the electric energy output by the power supply 200. For example, when the electric energy output by the power supply 200 is alternating current, the charger is an AC-DC circuit; when the electric energy output by the power supply 200 is direct current, the charger is a DC-DC circuit.

[0050] On the basis of the above embodiments, optionally, the charging switch module 130 includes: a first relay.

[0051] The first end of the first relay is connected to the charger; the second end of the first relay is connected to the power supply 200; the control end of the first relay is connected to the control module 160; the first relay is used to control whether the battery 100 to be tested is charged. Specifically, when the first relay is turned on, the circuit between the power supply 200 and the charger is turned on, and at this time, the charger is powered on to charge the battery 100 to be tested. When the first relay is turned off, the circuit between the power supply 200 and the charger is turned off, and at this time, the charger is powered off and the charging of the battery 100 to be tested stops.

[0052] Based on the above embodiments, optionally, the discharge module 120 includes: a discharger; a discharge port of the discharger is connected to the battery 100 to be tested; a first trigger terminal of the discharger is connected to a first end of the discharge switch module 140; a second trigger terminal of the discharger is connected to a second end of the discharge switch module 140; the discharger is configured to discharge the battery 100 to be tested when the discharge switch module 140 is turned on. The discharge switch module 140 includes: a second relay. A first end of the second relay is connected to the first trigger terminal of the discharger; a second end of the second relay is connected to the second trigger terminal of the discharger; a control terminal of the second relay is connected to the control module; the second relay is configured to control whether the battery 100 to be tested is discharged.

[0053] Specifically, the discharger is triggered to work according to the connection state between its first trigger terminal and second trigger terminal. When the first trigger terminal and the second trigger terminal of the discharger are connected, the discharger starts to work; when the connection between the first trigger terminal and the second trigger terminal of the discharger is disconnected, the discharger stops working. The second relay controls the connection state between the first trigger terminal and the second trigger terminal of the discharger. When the second relay is turned on, the first trigger terminal and the second trigger terminal of the discharger are connected, and at this time the discharger starts to work and discharges the battery 100 to be tested; when the second relay is turned off, the connection between the first trigger terminal and the second trigger terminal of the discharger is disconnected, and at this time the discharger stops working and stops discharging the battery 100 to be tested.

[0054] Figure 2 It is a schematic diagram of another electric bicycle battery testing device provided by an embodiment of the present invention. Based on the above embodiments, optionally, referring to Figure 2 , the control module 160 includes: a control unit 161 and a control communication unit 162.

[0055] A first end of the control communication unit 162 is connected to an output end of the acquisition module 150; a second end of the control communication unit 162 is connected to an acquisition end of the control unit 161; the control unit 161 is configured to control the conduction state of the charging switch module 130 according to the test parameters of the battery 100 to be tested to charge the battery 100 to be tested; or control the conduction state of the discharge switch module 140 according to the test parameters of the battery 100 to be tested to discharge the battery 100 to be tested; the control communication unit 162 is configured for communication between the control unit 161 and the acquisition module 150.

[0056] Specifically, the control unit 161 obtains the test parameters collected by the acquisition module 150 by controlling the communication unit 162. The control communication unit 162 converts the signals output by the acquisition module 150 into signals recognizable by the control unit 161, and converts the signals output by the control unit 161 into signals recognizable by the acquisition module 150, so that communication can be carried out between the control unit 161 and the acquisition module 150, and further the control unit 161 can obtain the test parameters collected by the acquisition module 150.

[0057] Based on the above embodiments, optionally, the control communication unit 162 includes: a CAN communication board. The first data terminal and the second data terminal of the CAN communication board are connected to the acquisition module 150; the signal sending terminal of the CAN communication board is connected to the signal receiving terminal of the control unit 161; the signal receiving terminal of the CAN communication board is connected to the signal sending terminal of the control unit 161.

[0058] Specifically, a CAN (Controller Area Network) communication board is a circuit board used to implement the communication function of the controller area network. It has key components such as a CAN transceiver and can establish a reliable CAN communication connection between different devices or systems.

[0059] Based on the above embodiments, optionally, the acquisition module 150 includes at least one of a current sensor, a voltage sensor, and a temperature sensor.

[0060] Figure 3 It is a schematic diagram of another electric bicycle battery test device provided by an embodiment of the present invention. Based on the above embodiments, optionally, referring to Figure 3 , the analysis module 170 includes: an analysis unit 171, a storage unit 172, and an analysis communication unit 173.

[0061] The analysis communication unit 173 is connected to the acquisition module 150 and the storage unit 172 is connected; the storage unit 172 is also connected to the analysis unit 171; the analysis communication unit 173 is used for communication between the storage unit 172 and the acquisition module 150; the storage unit 172 is used for storing the test parameters of the battery under test 100; the analysis unit 171 is used for determining the test result of the battery under test 100 according to the test parameters of the battery under test 100.

[0062] Specifically, the analysis communication unit 173 converts the signals output by the acquisition module 150 into signals recognizable by the storage unit 172, so that communication can be carried out between the storage unit 172 and the acquisition module 150. Exemplarily, the analysis unit 171 can be a computer or a dedicated analysis device, and this embodiment does not limit this. Figure 4It is a schematic diagram of another electric bicycle battery testing device provided by an embodiment of the present utility model. Refer to Figure 4 , the analysis unit 171 can also be directly connected to the analysis communication unit 173, so as to directly obtain the test parameters of the battery 100 to be tested, and quickly evaluate the performance of the battery 100 to be tested.

[0063] Based on the above embodiments, optionally, the analysis communication unit 173 includes: a CAN bus analyzer. The first end of the CAN bus analyzer is connected to the acquisition module 150; the second end of the CAN bus analyzer is connected to the storage unit 172.

[0064] Specifically, the CAN bus analyzer is a tool specifically used for monitoring, analyzing, and debugging the CAN bus. It can capture the data transmitted on the CAN bus in real time and perform detailed interpretation and analysis on these data.

[0065] It should be understood that various forms of the processes shown above can be used, reordering, adding, or deleting steps. For example, the steps described in the present utility model can be executed in parallel, sequentially, or in a different order, as long as the desired results of the technical solution of the present utility model can be achieved, and no limitation is made herein.

[0066] The above specific embodiments do not constitute a limitation to the protection scope of the present utility model. Those skilled in the art should understand that various modifications, combinations, sub - combinations, and substitutions can be made according to design requirements and other factors. Any modifications, equivalent substitutions, and improvements made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. An electric bicycle battery testing device, characterized in that: include: Charging module, discharging module, charging switch module, discharging switch module, acquisition module, control module and analysis module; The charging module is used to connect to the battery to be tested; the discharging module is used to connect to the battery to be tested; The charging switch module is connected between the charging module and the power supply; the discharging switch module is connected between the discharging module and the control module; The charging trigger end of the control module is connected to the control end of the charging switch module, the discharging trigger end of the control module is connected to the control end of the discharging switch module, the acquisition module is arranged in the battery to be tested, and the acquisition end of the control module is connected to the output end of the acquisition module; The acquisition module is used to acquire the test parameters of the battery to be tested; the control module is used to control the conduction state of the charging switch module according to the test parameters of the battery to be tested to charge the battery to be tested; or control the conduction state of the discharging switch module according to the test parameters of the battery to be tested to discharge the battery to be tested; the input end of the analysis module is connected to the output end of the acquisition module, and the analysis module is used to determine the test result of the battery to be tested according to the test parameters.

2. The electric bicycle battery testing device according to claim 1, characterized in that: The charging module comprises: a charger; The input end of the charger is connected to the first end of the charging switch module; the second end of the charging switch module is connected to the power supply; the output end of the charger is connected to the battery to be tested; The charger is used to charge the battery to be tested.

3. The electric bicycle battery testing device according to claim 2, characterized in that: The charging switch module includes: a first relay; The first end of the first relay is connected to the charger; the second end of the first relay is connected to the power supply; the control end of the first relay is connected to the control module; The first relay is used to control whether the battery to be tested is charged.

4. The electric bicycle battery testing device according to claim 1, characterized in that: The discharge module comprises: a discharge instrument; a discharge port of the discharge instrument is connected to the battery to be tested; a first trigger end of the discharge instrument is connected to a first end of the discharge switch module; a second trigger end of the discharge instrument is connected to a second end of the discharge switch module; The discharger is used for discharging the battery to be tested when the discharge switch module is turned on.

5. The electric bicycle battery testing device according to claim 4, characterized in that: The discharge switch module includes: a second relay; The first end of the second relay is connected to the first trigger end of the discharge instrument; the second end of the second relay is connected to the second trigger end of the discharge instrument; the control end of the second relay is connected to the control module; The second relay is used to control whether the battery to be tested is discharged.

6. The electric bicycle battery testing device according to claim 1, characterized in that: The control module includes: a control unit and a control communication unit; The first end of the control communication unit is connected to the output end of the acquisition module; the second end of the control communication unit is connected to the acquisition end of the control unit; The control unit is used to control the conduction state of the charging switch module according to the test parameters of the battery to be tested so as to charge the battery to be tested; or control the conduction state of the discharging switch module according to the test parameters of the battery to be tested so as to discharge the battery to be tested; the control communication unit is used for communication between the control unit and the acquisition module.

7. The electric bicycle battery testing device according to claim 6, characterized in that: The control communication unit comprises: a CAN communication board; The first data terminal and the second data terminal of the CAN communication board are connected to the acquisition module; the signal sending terminal of the CAN communication board is connected to the signal receiving terminal of the control unit; the signal receiving terminal of the CAN communication board is connected to the signal sending terminal of the control unit.

8. The electric bicycle battery testing device according to claim 1, characterized in that: The acquisition module includes: at least one of a current sensor, a voltage sensor and a temperature sensor.

9. The electric bicycle battery testing device according to claim 1, characterized in that: The analysis module includes: an analysis unit, a storage unit and an analysis communication unit; The analysis and communication unit is connected to the acquisition module and the storage unit; the storage unit is also connected to the analysis unit; The analysis and communication unit is used for communication between the storage unit and the acquisition module; the storage unit is used to store the test parameters of the battery to be tested; and the analysis unit is used to determine the test result of the battery to be tested according to the test parameters of the battery to be tested.

10. The electric bicycle battery testing device according to claim 9, characterized in that: The analysis and communication unit comprises: a CAN bus analyzer; The first end of the CAN bus analyzer is connected to the acquisition module; the second end of the CAN bus analyzer is connected to the storage unit.

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